let levels = [
    [
        [0, 0, 2],
    ],
    [
        [40, 0, 2],
        [120, 100, 2],
    ],
    [
        [40, 20, 2],
        [120, 100, 2],
        [240, 100, 2],
    ],
    [
        [40, 160, 1000],
        [80, 160, 1000],
        [120, 160, 1000],
        [40, 220, 1000],
        [80, 220, 1000],
        [120, 220, 1000],
        [40, 180, 1000],
        [40, 200, 1000],
        [120, 180, 1000],
        [120, 200, 1000],
    ],
]
